Worst air pollution Gwacheon, today and tomorrow
Today (16 July): Air quality in Gwacheon is fair. PM2.5, SO2, and PM1 are fair; AQI, NO2, and O3 are medium; PM10, CO, and HCHO are good. Pollution peaks around 9:00 PM (NO2: 52.9/100).
Tomorrow (17 July 2026): Air quality in Gwacheon is poor. AQI worsens to poor; O3 increases to poor; PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 76.4/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Gwacheon's air quality reflects the flat Gyeonggi-do southern Seoul metropolitan corridor position adjacent to the Gwacheon National Science Museum and Seoul Grand Park, with vehicle traffic on surrounding roads and the government, services, and residential character contributing local sources. Seasonal Chinese dust transport elevates PM10 during spring yellow dust episodes, while the broader Seoul metropolitan regional background maintains moderate South Korean metropolitan southern suburban readings throughout most of the year.
Today - 16 July | Pollution peaks at 21:00
AQI:
Medium
52.9/100
PM2.5 (fine particles):
Fair
28.1/100
PM10 (coarse particles):
Good
12.7/100
NO2 (nitrogen dioxide):
Medium
52.9/100
O3 (ozone):
Medium
49.5/100
SO2 (sulfur dioxide):
Fair
21.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Fair
28.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Poor
76.4/100
PM2.5 (fine particles):
Fair
36.4/100
PM10 (coarse particles):
Good
11.0/100
NO2 (nitrogen dioxide):
Medium
51.2/100
O3 (ozone):
Poor
76.4/100
SO2 (sulfur dioxide):
Fair
32.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.3/100
PM1 (ultrafine particles):
Medium
40.9/100
Frequently Asked Questions
Is air quality bad in Gwacheon right now?
On 16 July 2026, overall air quality in Gwacheon is fair. PM2.5 is the main pollutant at 28.1/100. Pollution peaks around 9:00 PM (NO2: 52.9/100).
Will air quality be worse tomorrow in Gwacheon?
On 17 July 2026, air quality conditions in Gwacheon will be worse than today, with AQI forecast at poor at 76.4/100. Pollution peaks around 2:00 PM (O3: 76.4/100).
When is air pollution at its worst in Gwacheon?
Pollution in Gwacheon typically rises when vehicle traffic together with harbour and shipping traffic combine, especially once dry spells bring strong winds. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. This is most noticeable during spring and autumn wind events.
Are air quality levels in Gwacheon based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app